Quantitative NO-LIF temperature imaging in high pressure flames

Tonghun Lee, Jay B. Jeffries, Ronald K. Hanson, Wolfgang G. Bessler, Christof Schulz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Quantitative imaging of nitric oxide concentrations and temperature using laser-induced fluorescence (LIF) in practical combustion systems has attracted much attention in recent years [1]. Quantitative imaging measurements are of interest to optimize combustor efficiency and to minimize pollutant emissions [2]. However, at pressures above 10 atmospheres, attenuation of the excitation laser and fluorescence signal, broadening of the lineshapes and interference from molecular oxgen LIF cause problems when applying LIF techniques. Thermometry using LIF and quantitative NO planar LIF (PLIF) imaging are also affected by these problems and accurate measurements in highpressure environments are difficult to achieve. We report results of a new multi-line LIF temperature measurement strategy applied in a laminar high-pressure flame. Quantitative NO-LIF concentration imaging (1-60 atmospheres) is also reported and discussed.

Original languageEnglish (US)
Title of host publication41st Aerospace Sciences Meeting and Exhibit
StatePublished - Dec 1 2003
Externally publishedYes
Event41st Aerospace Sciences Meeting and Exhibit 2003 - Reno, NV, United States
Duration: Jan 6 2003Jan 9 2003

Publication series

Name41st Aerospace Sciences Meeting and Exhibit

Other

Other41st Aerospace Sciences Meeting and Exhibit 2003
Country/TerritoryUnited States
CityReno, NV
Period1/6/031/9/03

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

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